I noticed that no-one addressed your question as of yet so I thought to offer the following. This is not exhaustive but offered to give a direction on where your question may be answered.

In Kaśmir Śaivism it operates on the notion of the trika ( 3 fold) system. We know this as śiva , śakti and nara. These are composed of the 3 energies of Śiva-Bhairava i.e.

parā śakti - considered Supreme energy (śakti)

parāparā śakti - considered medium śakti

aparā śakti - lower śakti

Within these 3 energies the whole universe and every action ( worldly, mental, physical, spiritual, etc) exists or are fueled within these 3 śakti-s. So within kaśmir śaivism and the trika philsophy or Trika Śaivism, it consistes of 4 schools of thought:Pratyabhijñā ( SELF recognition), Kula ( a grouping and used for 'totality' , Universal Consciousness), Krama ( progress made step-by-step), Spanda ( the throb, movement, SELF-referral of the Divine).

This is where one that is interested can round out their understanding of where parā, parāparā & aparā reside, their influnces, ownerships and transformations of the native occur.

This wonderful knowledge is found in the āgama-s. The āgama-s are made up of the following:

Bhairava śāstra-s - 64 in number; these are considered non-dual some call monistic; parā

Rūdra śāstra-s - 18 in number; these are considered dual-non-dual or mono-dualistic ; parāparā

Śiva śāstra-s - 10 in number; these are considered dualistic; aparā

You can see they total 92 śāstra-s that make up the āgama-s , yet some say there are 96.

IMHO the best way to know parā, parāparā & aparā is through the catagoires of śāstra-s mentioned above & that are available today ( not always easy to get the books with a translation and commentary)